9TRENKEL 2008 uses two independent measurements of Newton's constant $\mathit G$ to constrain new forces with strength $\vert \alpha \vert ≅10^{-4}$ and length scales $\mathit R$ = $0.02 - 1$ m. See their Fig. 1. This bound does not place limits on the size of extra flat dimensions.

10DECCA 2007A search for new forces and obtain bounds in the region with strengths $\vert \alpha \vert $ $≅$ $10^{13} - 10^{18}$ and length scales $\mathit R$ = $20 - 86$ nm. See their Fig. 6. This bound does not place limits on the size of extra flat dimensions.

12SMULLIN 2005 search for new forces, and obtain bounds in the region with strengths $\alpha $ $\simeq{}$ $10^{3} - 10^{8}$ and length scales ${{\mathit R}}$ = $6 - 20$ ${{\mathit \mu}}$m. See their Figs.$~$1 and 16 for details on the bound. This work does not place limits on the size of extra flat dimensions.

13HOYLE 2004 search for new forces, probing $\alpha $ down to and distances down to 10$\mu $m. Quoted bound on $\mathit R$ is for $\delta $ = 2. For $\delta $ = 1, bound goes to 160 $\mu $m. See their Fig. 34 for details on the bound.

14CHIAVERINI 2003 search for new forces, probing $\alpha $ above $10^{4}$ and $\lambda $ down to 3$\mu $m, finding no signal. See their Fig.$~$4 for details on the bound. This bound does not place limits on the size of extra flat dimensions.

15LONG 2003 search for new forces, probing $\alpha $ down to 3, and distances down to about 10$\mu $m. See their Fig.$~$4 for details on the bound.

16HOYLE 2001 search for new forces, probing $\alpha $ down to and distances down to 20$\mu $m. See their Fig.$~$4 for details on the bound. The quoted bound is for $\alpha $ ${}\geq{}$ 3.

17HOSKINS 1985 search for new forces, probing distances down to 4$~$mm. See their Fig.$~$13 for details on the bound. This bound does not place limits on the size of extra flat dimensions.

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